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NHTSA Campaign 78V146000

SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE

Issued by FREIGHTLINER CORP. · Reported Jun 21, 1978 · 65 vehicles affected

What's wrong

THE CHECK VALVE, LOCATED ON THE INLET SIDE OF THE PRIMARY AND SECONDARY AIR TANKS MAY CRACK IN THE FEMALE FITTING AREA AND CAUSE A SLOW LOSS OF AIR. A LEAKING VALVE WILL REDUCE AIR PRESSURE AND PARTIAL OR COMPLETE LOSS OF BRAKES ON THOSE AXLES THAT DEPEND UPON THAT PART OF THE SYSTEM COULD OCCUR.

Remedy

THE DEALER WILL INSPECT AND, IF NECESSARY, INSTALL NEW AIR CHECK VALVES.

Vehicles affected by this recall

Make Model Year Units
FREIGHTLINER FREIGHTLINER 1977 65
FREIGHTLINER FREIGHTLINER 1978 65

Source: NHTSA Campaign 78V146000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.